Scale.



A. DE VILBISS, JE-

SCALE.

APPLICATION FILED MAY 23, 1904. RENEWED snr'r. 23, 19:2.

1,063, 1 69. Patented May 27, 1913.

2 SHEBTS-SHEET 1.

l g ljafrzemsec: A w- 2 I m l77aez /ori' A. DE VILBISS, 5a. soaps APPLIUATIOR FILED MAY 23,190A RENEWED SEPT. 23. 1912v 1,063 1 69. Patmxted May 2?, 1913.

2 BHEETS-SHEET 2.

UNITED STATES PATENT canton.

ALLEN DE VIIJBXSS, JR, OF TQLEDO, OHIG, ,ASSIGNOR T0 TOLEDO SCALE CQEEPAEY, 0F NEWARK, NEW JERSEY, A CGRPORATION 01" NEW JERSEY.

SCALE.

application filed May 23, 1904, Serial No. 238,396.

S ecification of Letters Patent.

Patented May 27', 19 Renewed September 23, 1912. swarm. 721,925

I m iii 92114-5]; concern;

Be :1 imam that l, ALLEN Dn VILBrss, Jr., a citizen of ll 2 United States, residing at Toledo, llucas county. Ohio, have invented certain new and useful improvements in ifiicales, of ivhich the following is a specifier tion.

My invention has relation to scales, more particularly to those of the price-computing" type by Which are indicated both the Weight and the value of an article or commodity at. so much per pound or other unit of weight.

My invention pertains to a novel and efiicient tare device for such scales and also to a novel construction and arrangement of What is eonunonly designated back indication, or means for indicating to the custoinen on his side of the scale, the Weight of the article, while both the Weight and the price or value 0% the article are indicated on the other 'or salesmans side of the scale.

lVith regard to the tare device, the object of this part of i'ny invention is to provide simple and. ellicicnt means for compensating for the tare of any receptacle or con tainer placed on the scale and or indicating the amount 01'' such tare. In a prior application filed by me on llovember 10, 1903, Serial Number 180,595, I have shown and described a tare Weight which Was arranged to move or swing in relation to the scale beam on a pivot, but in the present instance I provide'for the shifting or moving of a tare weight longitudinally of the scale beam in a novel manner and. by means of simple and reliable mechanism, with the result that the tare may be indicated and provided for by the salesman in a most expeditious Way.

With regard to the back indication forming the other principal feature of my invention, I have herein illustrated the barrel or drum type of computing: mechanism. which is usually provided with a slot or sight opening on the customers side to expose weight indications, but the objection to this arrangement resides in the fact that only one weight indication or number is Wholly exposed through such sight opening, so that unless the barrel stops at a point to indicate an even number of pounds, the customer is unable to know or determine Whether the article on the scale weighs more or less than such number of pounds. in my present and improved arrangement. I dispense with such sight opening and provide a separate and independent back indication, comprising a dial exposing all the Weight indications and having a pointer, actuated. by the scale mechanism, for sweeping over the dial and capable of indicating tothelcustomer at a glance the exact number of pounds and fractions thereof.

The various features of advantage and points of utility possessed by my'in'iproved scale as to construction and mode of operation will be made apparent the descripticn hcrcinaftc'r given. i

In the drawings, Figure 1 is an and elevation of my improved scale; Fig; 2 a section on line 2*2 of Fig: 1; Fig. 3 a side elevation thereof with one of the end caps of the barrel or drum removed to expose the operating mechanism; Fig. i a plan View of the front end of he scale-beam with the plat on line 55 of Fig. 4. i

As herein shown. my scale is of the usual platform type comprising the l, supporting standards 2, a scale beam pivoted on such standards, a platform-or pan 4 pivoted on the scale beam, and having a yoke 25 rigidly connected thereto which yoke forms an attaching means for the rod 26 the base 1 for preserving the level of the pan in connection with the barrel or drum indicating mechanism 5 supported at the upper ends of posts 6 rising from the base, which indicating mechanism is operated and controlled by the movements of the scelc-- all which parts are constructed and or ranged. to operate in the old and wellhnown manner.

As seen by reference to Figs. 2 and 3, the scale beam, as to its front end next the salesman partakes of the form of an irregu lar shaped frame 3 while its rear end is in the form of an ordinary beam or lever extending to a position between the slituidards or posts 6. \Vithin and as a part of the scale beam frame is formed a rectangular guide frame 7, having guideivays or slides pins 9 of a movable or shittalolc tare Weight 10. This guide frame is positioned longitudinally of the scale beam and consequently the taro Weight is movable longitudinally of form or pan removed; and Fig. 5 a section which is pivoted to a link not shown within on which travel or slide the projections or such beam, with the result. that. the tare of any receptacle placed on the platform or pan may be taken up or compensated for.

Projecting centrally and forwardly from the tare weight is a rack 11 operatively connested with such weight and adapted to cooperate with and engage a pinion 12 suitably mounted on a fixed axis arranged in the scale beam frame. Immediately below this pinion and on the same axis is a second pinion 13 which is adapted to mesh with and be operated bya curved rack 14. This latter rack is formed as a branch arm. of a lever 15 which is pivoted at its rear endand at a point. 16 substantiall Y central ol' the scale beam, as indicated in Figs. 4 and 5. This lever 15 extends forwardly to the front margin of the scale beam frame and is there upwardly turned and atits extreme upper end is provided with an inturned indicating linger or tooth 1'? arranged to sweep over the tare scale 18 formed on the beveled front edge of'the scale beam frame. This lever thus serves as an indicator or pointerand also an operhting' lever for shifting the ire weight. A handle or knob 19 is provided on the pointer or lever to facilitate the movement: and adjustment thereof.

It will be understood that in the normal position of the parts, the tare weightis at its forward ii o finoven'ient in the guide frame and at a point substantially central of the scale beam, and that movement there, of rearivardly the proper distance will serve to compensate for and connterhalancc the tare of any receptacle placed on the platform or pan, whose pivotal connection with the scale beam is, in the present instance, forward of the pivotal bearings ol' the scale beam upon the suppor ing standards 2. Referring to Fl". 4, the tare Weight is there shown in intermediate position, and the pointer 171's arranged at. the half way point. on the scale 18, which indicates half its capacity to tare. The normal position at the lever 15 and pointer 17 is at the left hand side of the tare scale when viewed from the position of the salesman, at which time the said pointer indicates zero. Movementof such lever to the right is transmitted through the curved rack 14 to the small pinion 13, thence to tlielarger pinion l t and finally to the rack ll and the attached tare weightv 10, which is thereby moved or shifted rearwardly a distance corresponding to the distance of adjustment of the pointer 17. lVhen an en'ipty receptacle is placed on the platform in order to have. its tare counter balanced or provided for, the p inter 17 is fled and the associated parts thrrcl'iy operated in the manner disc d until the scale beam balances or it the weight of the receptacle itsel is no, the

known in pointer 17 may he immediately bron e the l:

a position on the tare scale indicating that same weight and the weighing' and computing of the article may he proceeded with. Or, if desired, the receptacle may be weighed by the indicating mechanism 'or drum, and the pointer 17 immediately brought to a corresponding indication on the tare scale.

Now, referring to the hack indication forming the other feature of my invention, I pro ide, at the rear of the machine adjacent the customer and below the drum or barrel, an indicating; scale or dial 520 sup ported in suitable manner, as by the arms 6 extending inwardly and upwardly from the posts or standards 6, as clearly indicated in Fig. 1. This scale 20 is formed on the are of a circle described from the pivotal point or axis 21 of a pendulum 22, on which same axis moves the indicator or pointer 23 cooperating with the scale 20. This pointer is secured to the pendului'n sleeve 24. which is operatively connected with the rear end of the scale-beam in the. usual and well known manner and therefore requires no detailed description. The indications on this scale 53C are all fully exposed to the customer who can therefore readily tell the exact. weight. to the point and traction thereof by simply following and reading the in dicator or pointer. The rlitliculty hereinbe'tore referred o in the use ol' the usual back indication in the barrel type of ale is tl'iere'fore not CXP-QIiCHPOCl in the etnistruclion herein shown and above described.

The usual indicating mechanism for indi cating weight and the value of the articleis here shown as of the barrel or drum type and the same operatively onnected with the scale beam in the ordinary and well known manner, so as not to require. any detailed description.

it will be understcod that the direction of movement. of the tare. weight, in order to counterhalanee the receptacle, depends upon the. relative position of the pivotal points of the scale beam and the platform in the. present instance the pivotal points of the scale beam a re rearward of the iilatloru' pivotal points, that is beyond the. latter prints. viewing them from the salesmans side, and mnsequently to counterbalance the tare, the tare weight must be moved rear- \vardly, that toward the indica ting mcchanism whereas in case. the respective pivotal points were reversed in relative arrange ment, the tare weight would have to be moved forwardly, that is, in. the. op1z nsitc direction, for said purpose With the scale beam and platform pivotal points so reversed a. pendulum such as 22 connected with the rear end of the scale beam in the usual and welldnuwan manner as stated, would be normally pendent inasmuch as a load placed upci pla It would depress this end of i sure of weight. would an. in.

is removed and not when it is applied .1

necessarily have to be determined by increas: ing resistance of the pendulum in rising. On the other hand, with the bears. and plat form pivotal points related as shown and described a load placed upon the platform not essarily elevates the rear end of the beam and though the pendulum is as slat l connected by well known instrumentalities with such rear end of the beam, its upward swing cannot be produced by the application of the load for such upward swing nec arily accon'ipanies deprcssism of the rear end of the beam and that takes place when t it stated the application of the load 1 .1 the rear end of the beam. Consequently t. e preponderance of weight of the inner longer arm of the beam with its lateral projection for connection with the indicating drum rack rod, must be talzen into consid ration. The pendulum being connected with the rear end of the beam in the usual or well'known manner as stated, necessarily acts with the load to overcome the weight carried by the inner arm of the beam and so the measure of \veigllt of: the load is determined by the decreasing resistance of the pendulum as it lowers. As the pendulum is shown pendent in Fig. 1 of the drawings, it must be sumed that the platform is depressed to the limit. The removal of the load from the platform would of course result in a lowering of the rear end of the beam to the limit. Under the tare arrangement shown, the sliding of the tare weight 10 toward this rear end of the beam would oi. course add to the preponderance of weight carried by the inner arm of the beam and require the application of an amount of weight, as that oi? a receptacle for goods, corresponding with that indicated on the tare scale 18, before there would be any movement of the pendulum. It should be noted that the indicating drum raclr is on the forward side of the drum pinion (Fig. 3) instead of on the 1' or side as customary when the platform on the same side of the beam pivot the indicator and pendulum connection. This versal of relation between the rack pinion provides for rotation of the indicating drum in' the same direction when the inner arm of the beam rises as it would rotate under the reversed relation of beam and platform pivots when the inner arm of the beam descends and the rack is on the rear side of the pinion.

I claim:

i. In apparatus of the character described, the combination with a scale beam, indicatin g means, and load-counterbalancing means, all operatively connected together, of a tareweight carried by the scale beam and movable longitudinally thereof; a handle lever movable crosswise the scale beam; and operating connections between said lever and the tare weightfor converting the cross-wise movement of the former into longitudinal movement of said weight.

2. In apparatus of the character described, the combination with a scale beam, indicating means, and load-counterbalancing means,

all operativoly connected together and the scale beam having graduations extending across one end thereof; of a tare-weight carried by the scale beam and movableflongitudin'ally thereof; a handle lever movable crosswise the scale beam, in association with the aforesaid graduations thereof; and operating connections between said lever and the tare weight for converting the cross-wise movement of the former into longitudinal movement of said weight.

3. In apparatus of the character described, the combination witlr a scale beam, indicat: ing means, and load-counterbalancing means, all operatively connected together and the scale beam having graduations extending across one end thereo of a tarewveight carried by the scale beam and movable longitudinally thereof; a handle lever movable crosswise the'scale beam and projecting beyond the end of the scale beam and having a pointer extending over the graduations 0n the latter, and operating connections between the said lever and the tare weight for converting the cross-wise movement of the former into longitudinal movement of said weight.

4. A scale comprising indicating medha-' nism, a scale lever cooperating there ith and formed at its forward end into a frame 3, a guide frame within said frame 3*, and a tare weight movable within said guide frame and longitudinally of the Scale lever, substantially as described.

5. A scale comprising indicating mechanism, a scale lever co'c'vporating therewith, a tare weight movable longitudinally and centrally in said scale lever and having a projecting rack, a pinion mounted in such scale lever and cooperating with the rack, an indicator or pointer, and a rack carried by such pointer and opcratively connected with the pinion; substantially as described.

(3. A scale comprising indicating mechanism, a scale lever codperating therewith, a tare weight movable longitudinally and-centrally in said scale lever and having a protare Weight movable longitudinally and centrally in said scale lever and having a projecting rack, a pinion mounted in such scale lever and meshing with the rack, a second pinion cor'iperating with the first pinion, a curved rack meshing with said second pin-- ion, and an indicator or {winter operating said curved rack: tantially as de :ril ti.

A scaie. comprising indicating mechanism, a scale lever cooperating therewith, a taro weight movable lougitudii'ially and ccrr trally in said scale lever and having; a projecting rack a pinion mounted in such scale lever and meshing with the rack, a second pinion cooperating with the first. pinion, and an indicator or pointer having a branch arm forming a curred rack arranged to cooperate and drive the second pinion;substantially as described,

The combinatirm of a scale lever 3, having a frame 3". a guide frame 7 therein providcd with guides 8, a tare weight 10 movable in said guides, and means for moving of shifting" inch weight; substantially as de scribed.

10. The, combination of a scale lever 3, having a. frame 3, a guide frame, 7 therein provided with guides 8, a tare weight 10 having late al lugs 9 arranged to slide on said guides, and means for moving or shifting such weight; substantially as described.

11. In apparatus of the character described,t-he combination of indicating means, load-counterbalancing means, a scalc-beam formed as a frame at one end and bearing graduations on a side, of said frame which extends crosswise the beam, tare-weight carried by the beam and movable longitudinally thereof, an adjusting member movable along the graduatedside of the frame; and operating connections between said member and thc tare wcight.

12. In apparatus, of the character de- &(1llbGCl,tll3 combination of indicating means, load-counterbalaneing means, a scalebeam' carried by the beam and movable longitudinally thereof, a handle lever projecting {and said graduated side of the trams and having" a pointer overlying the graduations;

and operating connections between said lever and the tare weight.

'13. In apparatus of the character described. the combination of indicating means, load-counterbalancing means, a scale-beam formed as a frame at one end' and bearing graduations on a side of said frame which extends crosswise the beam, said scale beam also formed with a longitudinally extending guide-way; a tare-weight engaging the said guideway and having a rack extending longitudinally of thescale-bcam within the trame thereof; a. handle levcr pivoted on the scale beam and projecting beyond the graduated side of said frame and having a pointer overlying the graduations, said le- Yer carrying a rack; and a compound pinion whose members mesh respectively with the latter and the rack of tile tare-weight.

14, In a qaaratus of the character described, the combination with a scale-beam, an indicating drum extending transversely thereof and operatively connected therewith, and load-counterbalacing means, of a fixed scale faced oppositely to said drum; a pointer arranged to swing in association with said fixed scale; and operating connections between said pointer and the scale beam.

ALLEN DE VILBISS, JR.

\Vit-nesses:

V. GORDON STAn), ROBERT F. GRossELL. 

